氧化锆含量及热处理升温速率对LAS透明微晶玻璃析晶行为的影响

胡伟; 尹勇明; 孟鸿

硅酸盐通报, 2023, 42 (6): 2215, 网络出版: 2023-11-20

氧化锆含量及热处理升温速率对LAS透明微晶玻璃析晶行为的影响

Effects of Zirconia Content and Heating Rate on Crystallization Behavior of LAS Transparent Glass Ceramics

论文大纲

胡伟 ^1,2尹勇明 ¹孟鸿 ¹

作者单位

¹ 北京大学深圳研究生院新材料学院, 深圳 518055

² 深圳市东丽华科技有限公司, 深圳 518109

透明微晶玻璃盖板玻璃晶相转变光学性能析晶行为 transparent glass ceramics cover glass crystal transformation optical characteristic crystallization behavior

摘要

采用常规熔融退火和两步结晶法制备了具有不同ZrO2含量的Li2O-Al2O3-SiO2(LAS)体系的高结晶度透明微晶玻璃。研究了LAS微晶玻璃的结晶动力学、相演变、微观结构和透光性能。结果表明, ZrO2含量增加到一定量时, 玻璃的析晶方式由一维生长逐渐变为二维生长, 其析晶放热峰Tp值逐渐升高, 而析晶活化能逐渐降低。通过控制热处理升温速率可实现玻璃中硅酸锂(Li2SiO3)、透锂长石(LiAlSi4O10)和二硅酸锂(Li2Si2O5)晶体的析出, 并且发现晶体由硅酸锂(Li2SiO3)向二硅酸锂(Li2Si2O5)转变时, 玻璃的透过率会增大。此外, SEM测试结果显示, 随着热处理升温速率的减小, 玻璃析出的晶体尺寸逐渐变大, 晶体形貌主要为球形晶体。

Abstract

Li2O-Al2O3-SiO2 (LAS) system high crystallinity transparent glass ceramics with different ZrO2 content were prepared by conventional melt quenching and two-step crystallization approaches. The crystallization kinetics, phase evolution, structure and light transmittance of LAS glass ceramics were studied. The results show that when the content of ZrO2 increases to a certain amount, the crystallization mode of glass gradually changes from one-dimensional growth to two-dimensional growth, and its crystallization exothermic peak Tp value gradually increases, while its crystallization activation energy gradually decreases. In the process of crystal phase transformation, the glass precipitated crystal phases include lithium silicate (Li2SiO3) crystal, lithium permeating feldspar (LiAlSi4O10) crystal and lithium disilicate (Li2Si2O5) crystal. It is found that when lithium silicate (Li2SiO3) crystal is transformed into lithium disilicate (Li2Si2O5) crystal, the transmittance of glass increases. In additions, SEM results show that with the decrease of heating rate, the crystal size of glass precipitation gradually increases, and the crystal morphology is mainly spherical.

参考文献

[1] 胡伟, 覃文城, 谈宝权, 等. 单步法二元离子交换对锂铝硅玻璃化学强化的影响［J］. 硅酸盐通报, 2018, 37(10): 3223-3227.

[2] 胡伟, 覃文城, 谈宝权, 等. 二强处理的盖板玻璃抗跌落性内在影响因素研究［J］. 玻璃搪瓷与眼镜, 2021, 49(2): 1-7+33.

[3] 胡伟, 谈宝权, 覃文城, 等. 化学强化玻璃的发展现状及研究展望［J］. 玻璃与搪瓷, 2018, 46(3): 44-50.

[4] CZKA K, CHOLEWA-KOWALSKA K, BORCZUCH-CZKA M. Thermal and spectroscopic characterization of glasses and glass-ceramics of Li2O-Al2O3-SiO2 (LAS) system［J］. Journal of Molecular Structure, 2014, 1068: 275-282.

[5] RIELLO P, CANTON P, COMELATO N, et al. Nucleation and crystallization behavior of glass-ceramic materials in the Li2O-Al2O3-SiO2 system of interest for their transparency properties［J］. Journal of Non-Crystalline Solids, 2001, 288(1/2/3): 127-139.

[6] CHEN M T, HE F, SHI J, et al. Low Li2O content study in Li2O-Al2O3-SiO2 glass-ceramics［J］. Journal of the European Ceramic Society, 2019, 39(15): 4988-4995.

[7] LI H D, YANG L P, CAO C C, et al. In situ observation of Li2O-Al2O3-SiO2 glass crystallization process and kinetics analysis［J］. Journal of Crystal Growth, 2020, 547: 125816.

[8] GLATZ P, COMTE M, MONTAGNE L, et al. Structural evolution at short and medium range distances during crystallization of a P2O5-Li2O-Al2O3-SiO2 glass［J］. Journal of the American Ceramic Society, 2020, 103(9): 4969-4982.

[9] LUTPI H A, MOHAMAD H, ABDULLAH T K, et al. Effect of isothermal treatment on the structural, microstructure, and physio-mechanical properties of Li2O-Al2O3-SiO2 glass-ceramic［J］. Journal of the Australian Ceramic Society, 2022, 58(1): 9-20.

[10] KLEEBUSCH E, PATZIG C, HCHE T, et al. The evidence of phase separation droplets in the crystallization process of a Li2O-Al2O3-SiO2 glass with TiO2 as nucleating agent-an X-ray diffraction and (S) TEM-study supported by EDX-analysis［J］. Ceramics International, 2018, 44(3): 2919-2926.

[11] LI B, WANG S L, FANG Y. Effect of Cr2O3 addition on crystallization, microstructure and properties of Li2O-Al2O3-SiO2 glass-ceramics［J］. Journal of Alloys and Compounds, 2017, 693: 9-15.

[12] KLEEBUSCH E, PATZIG C, KRAUSE M, et al. The titanium coordination state and its temporal evolution in Li2O-Al2O3-SiO2 (LAS) glasses with ZrO2 and TiO2 as nucleation agents-a XANES investigation［J］. Ceramics International, 2020, 46(3): 3498-3501.

[13] HLAND W, BEALL G H. Glass-ceramic technology［M］. Westerville, OH: American Ceramic Society, 2002.

[14] 何进, 王明忠, 陈志鸿, 等. 氧化锆对锂铝硅酸盐玻璃化学强化性能的影响［J］. 硅酸盐学报, 2022, 50(2): 372-377.

[15] SHI J, HE F, XIE J L, et al. Kinetic analysis of crystallization in Li2O-Al2O3-SiO2-B2O3-BaO glass-ceramics［J］. Journal of Non-Crystalline Solids, 2018, 491: 106-113.

[16] KISSINGER H E. Variation of peak temperature with heating rate in differential thermal analysis［J］. Journal of Research of the National Bureau of Standards, 1956, 57(4): 217.

[17] MATUSITA K, SAKKA S. Kinetic study of crystallization of glass by differential thermal analysis: criterion on application of Kissinger plot［J］. Journal of Non-Crystalline Solids, 1980, 38/39: 741-746.

[18] MATUSITA K, SAKKA S. Study on crystallization kinetics in glass by differential thermal analysis［J］. Thermochimica Acta, 1979, 33: 351-354.

[19] AUGIS J A, BENNETT J E. Calculation of the Avrami parameters for heterogeneous solid state reactions using a modification of the Kissinger method［J］. Journal of Thermal Analysis, 1978, 13(2): 283-292.

[20] APEL E, VAN’T HOEN C, RHEINBERGER V, et al. Influence of ZrO2 on the crystallization and properties of lithium disilicate glass-ceramics derived from a multi-component system［J］. Journal of the European Ceramic Society, 2007, 27(2/3): 1571-1577.

[21] 胡伟, 张延起, 谈宝权, 等. 一种透明的强化玻璃陶瓷及其制备方法: CN110627365A［P］. 2022.

[22] VENKATESH P, PRASAD C R. Corrections for Mie theory given in “The Scattering of Light and Other Electromagnetic Radiation”［J］. Applied Optics, 1983, 22(5): 645.

[23] BEALL G H, DUKE D A. Transparent glass-ceramics［J］. Journal of Materials Science, 1969, 4(4): 340-352.

[24] BEALL G H, PINCKNEY L R. Nanophase glass-ceramics［J］. Journal of the American Ceramic Society, 2004, 82(1): 5-16.

胡伟, 尹勇明, 孟鸿. 氧化锆含量及热处理升温速率对LAS透明微晶玻璃析晶行为的影响[J]. 硅酸盐通报, 2023, 42(6): 2215. HU Wei, YIN Yongming, MENG Hong. Effects of Zirconia Content and Heating Rate on Crystallization Behavior of LAS Transparent Glass Ceramics[J]. Bulletin of the Chinese Ceramic Society, 2023, 42(6): 2215.

氧化锆含量及热处理升温速率对LAS透明微晶玻璃析晶行为的影响

关于本站 Cookie 的使用提示

全站搜索

氧化锆含量及热处理升温速率对LAS透明微晶玻璃析晶行为的影响

相关论文

相关资讯

关于本站 Cookie 的使用提示

全站搜索